Lid-raising device.



J. G. GIBBS.

LID RAISING DEVICE.

APPLICATION FILED DBCLHD, 1913.

1,107,781 Patented Aug.18, 1914.

WITNESSES %I NVNOR .4

ATTORNEYS JOHN CORYDON GIBBS, OF PHILADELPHIA, PENNSYLVANIA.

LID-RAISING DEVICE.

To all whom it may concern Be it'known that 1, JOHN Common GIBBS, a citizen of the United States, residing in the city and county of Philadelphia, State of Pennsylvania, have invented a new and useful Lid-Raising Device, of which the following is a specification.

My invention consists of a novel construc tion of lid raising device, combined with a novel packing device therefor, which is ap plicable generally to various forms of boxes or receptacles, having tight fitting lids or closures, which require considerable expenditure of force to remove or open, the invention being particularly applicable to receptacles, such as tin boxes, for containing shoe polish and other evaporable compositions which require a tight fitting lid, that will effectually seal the contents of the receptacle from the atmosphere. It will, however, be understood that in the practical use of my invention, I do not limit the same to boxes for the reception of any particular kind of,

material or composition, but the same is adapted for any kind of boxes or receptacles for the reception of any plastic or semi-plastic material, which may or may not have a tendency to evaporate upon exposure to the atmosphere.

'By the employment of my invention, I have produced a packed lid raising device, which is particularly adapted for use in connection with all boxes or receptacles for evaporable compositions, having tight fitting lids or closures, which can be quickly and positively removed without damage or distortion of either the lid or the receptacle, thereby enabling the lid to be replaced with a tight and even fit repeatedly until all the contents of the box or receptacle have been utilized.

For the purpose of illustrating my invention, I have shown in the accompanying drawing one form thereof which is at present preferred by me, since the same will be found in practice to give satisfactory and reliable results, although it is to be understood that the various instrumentalities of which my invention consists can be variously arranged and organized, and that my invention is not limited to the precise arrangement and organization of these instrumentalities as herein shown and described.

Figure 1 represents a perspective view showing the exterior or manually operated portion of my novel construction of lid rais- Speciflcation of Letters Patent.

Application filed December 29, 1913.

Patented Aug. 18, 1914. Serial No. 809,194.

ing device. line w-m, Fig. 1, showing the relation of the packing device to the lid raising cam and its adjuncts. Fig. 3 represents a section on line ya Fig. 2. Fig. 4 represents a perspective view of the cam and its operating stem and their adjuncts, in detached osition.

Similar numerals of re erence indicate corresponding parts in the figures.

Referring to the drawings :-1 designates a box or receptacle, to which my invention is applicable, the same comprising the bottom or body portion 2 and the tight fitting lid or cover portion 3, my invention being shown in the present instance as adapted, in one embodiment thereof, to a box for shoe polish or similar evaporable compositions, which require a lid fitting tight enough to effectually seal the contents of the receptacle from the action of the air. The bottom or body portion 2 may be constructed, as is customary, with the base 4, and the upright, annular, square or other shaped wall 5, which terminates in the top edge 6, having, if desired, the reversely turned portion 7, although the latter may be omitted, if desired, and the wall may or may not have an annular strengthening bead 18, since this pavse forms no part of my invention.

In the case of blacking boxes, to which my invention is especially applicable, a very tight fit is produced, when the lid is forced down into place, and as the material of which the lid and box body are composed is somewhat pliable, an even fit is obtained between the lid and receptacle that seals the contents from the air, but disengagement of the lid is frequently difficult because of the binding action between the contiguous flanges and the sticking produced by the composition lodging between said flanges, all of which objections are provided for or obviated by the use of my invention, now to be referred to.

The lid or cover 3, to which is applicable, comprises the top 8, having the depending flange 9, which is adapted to engage the outer peripheral portion of the edge 6, said depending flange 9 having the outwardly bulged portion or hollow boss or protuberance, 10, within which is contained a packing or filling 11 of suitable packing material, through which passes the stem 12, having secured to its inner portion the cam 13 having the operative cam face 14, which is adapted to normally rest upon the top my invention Fig. 2 represents a section on OFFICE. i

' hollow boss 10 serves as a edge 6 of the box body, as be understood from Fig. 3. The outer end 15 of the stem 12 is preferably sli htly enlarged and rovided with, a cut or kerf 16 therein, in w ich is inserted the finger-piece 17, which can be readily manually operated, whereby the cam 13 can be readily turned, rocked or oscillated from the exterior of the box when it is desired to raise the lid therefrom, the contact of said cam with the top edge 6 of the box body serving to raise the cover 3 therefrom, as is evident. ihe finger-piece 17 can be pinned, soldered or otherwise secured to the stem 12 or its outer end 15, according to reuirements, as will be apparent to those s 'illed in the art.

I desire to-call especial attention to the employment out the packing 11 in connection with the hollow boss 10, said packing being retained in osition within said boss by the cam 13, 'so t at it will be apparent that the contents of the closed box will be kept free, by reason ofthe' packing devices, from deterioration, by the action of the atmosphere or other climatic causes, which is very essential in devices of this character, since if the stem 12 is merely loosely inserted in a hole in the flange 9 of the cover, as in prior constructions with which I am familiar, the contents of the box are liable to become aflfected by the ingress of the air thereto, whereas in my novel construction, no such disadvantages are present. It will furthermore be apparent, that the provision of the handle for the lid, and by the employment of the packing devices ll, retained in position by the cam 13, there can be'no leakage of the contents of the box, and soiling'ot' the hands of the user is therefore avoided.

It will be clearly seen from the foregoing that my novel construction of a lid raising device in conjunction with the packing devices employed, operates positively to separate the lid and body of the receptacle, without damaging or distorting either part, so that the operation may be repeated many times, Without impairing the tight fit of the lid on the receptacles, which is essential to prevent evaporation or leakage of the contents of the receptacle.

It will now be apparent that I have devised a novel and useful construction of a lid raising device, which embodies the features of advantage enumerated as desirable in the statement of the invention and the above description, and while I have, in the mower present instance, shown and described a preferred embodiment thereof which will be found in practice to give satisfactory and reliable results, it is to be understood that the same is susceptible of modification in various particulars without departing .from the spiritor scope oi the invention or sacrificing any of its advantages.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is

1. As an improved article of manufacture, a box cover having a hollow inwardly open boss, packing filling said boss, a stem rotatably mounted in said boss and packing, and

a cam on said stem, the inner wall ofsaid camabutting said packing whereby said packing is retained by saidcam within the oss.

2. A box body, a cover for said bodv having a flange, a hollow boss projecting from said flange, a stem rotatably mounted in said hollow boss, a cam mounted on the inner end of said stem, and projecting beyond the inner wall or said flange to engage the upper edge of the flange of said box body, and acking in said hollow boss, said cam serving to hold said packing in said boss.,

3. A box body, a cover forsaid body having a flange, a hollow boss projecting from said flange, a stem rotatably mounted in said hollow boss, a cam mounted on the inner end of said stem, and projecting beyond the inner wall of said flange to engage the upper edge of the flange of said box body, and packing in said hollow boss, said cam serving to hold said packing in said boss, in combination with. a finger-piece'secured in the outer end of said rotatable stem, for manually rotating the latter.

4:. In a box lid raising device, the combination of a cover flange having a pocket therein, packing material located in said pocket, a stem passing through the outer wall of said pocket and said packing, and having a cam on the inner end thereof, said cam projecting beyond the plane of the inner face of the box covcr lid to contact therewith, and serving as the sole means for retaining said packing in position, a fingerpiece on the outer portion of said stem, finger-piece being secured in a slot in the outer portion of said stem.

JOHN CORYDON GIBBS. Witnesses:

M. KONZELMANN, H.B. LADNER.

said 

